I run Roush synthetic 5W40 in my 97 Cobra.....100000 miles 100psi cold start, 65 psi hot at 2000 rpm.....It uses a tiny bit of oil, caught in my seperator. Runs like a champ, and dead quiet....:burnout:
This is an interesting conversation. Did Ford say anything about changing the viscosity on 96 Cobra's? What is suggested by you guys for that year? Any experiences?
A guy on another Forum started a thread about this, I attached some of the links here to share info and he took the advice and switched to a 5W30 AND immediately he says there's cold start piston slap, he drove for this oil two days then went back to 5W20 and now a quiet motor as before, what gives for this dude? 01 Bullitt 2V?
Shouldn't there be less noise?
Just to stir more s**t, who makes the best oil filter? I like the Bosch long oil filter, or a wix.
what do you guys think of using 10w30 synthetic?
What About Oil with ZInc? Should we try to get oil with ZDDP additive Like Royal Purple HPS and XPR? Will that help with the 4V
What About Oil with ZInc? Should we try to get oil with ZDDP additive Like Royal Purple HPS and XPR? Will that help with the 4V
Diesel grade oils (which can be used in gasoline engines) also contain extra doses of zinc and zddp that regular gasoline engines dont have enough of.
Brutal Metal said
A guy on another Forum started a thread about this, I attached some of the links here to share info and he took the advice and switched to a 5W30 AND immediately he says there's cold start piston slap, he drove for this oil two days then went back to 5W20 and now a quiet motor as before, what gives for this dude? 01 Bullitt 2V?
Shouldn't there be less noise? .
Yes, the 5w-30 would help with piston slap, not make it worse. I doubt that's what he was hearing.
Thicker oil takes longer to circulate through the engine but were talking micro seconds, not anything that would be audible. His experience is unlike anything I've ever heard and makes no sense.
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This is also to Brutal metal as well..just can't seem to get the GD multiquote to work for me...so had to cut & paste Brutal's quote...hope it comes out OK.
I stated in another recent thread:
5w-30 any synthetic..7 quarts......I had a mechanic tell me it's easier for older sump oil pumps to suck it up..:shrug:
SOOOO...
Q: Even if 5w-20 was recommended...once oil sump pump gets "tired" wouldn't 5w-30 be best??
That is..is what I was told true?
Two separate mechanics..both audi mechanics, told me this...I have that 3.0l audi A4 with that "oil-centric" engine..in my winter driver..as Kelly doesn't see snow..
Also and sorta aside...but not...
Q: Is 5w-30 synthetic Blend oil equivalent to 10w-30 pure $ynthetic oil??
I see you more on modularfords..thanks for posting at SVTP.
I always change my oil every 400-500 miles or 6 months (not driven much and I have no pcv system so the oil gets dirtier quicker).
Maybe I just missed it, but what are the reasons to run 7 quarts of oil in these cars vs. the factory recommended 6 quarts?